[Wien] Error - Fermi level was not found for doping

[chin Sabsu]

Dear Users,After successful attempt of electronic, optical and magnetic properties, I tried to run Boltztrap calculation.In an alloyed compound with different doping level concentrations, I encountered below error.
"Error - Fermi level was not found for doping"

Please suggest me:What does it mean and how to overcome this situation.

Thanks in advance and help will be highly appreciated.
Thank youChin
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